Jeremy Wagner

yall.js. A fast, flexible, and small SEO-friendly lazy loader.

webpack-tree-shaking-example. A simple tree shaking example app using webpack.

dnstradamus. A prognosticating client-side DNS prefetcher for outbound links.

code-splitting-example. A toy app demonstrating how to do code splitting in Webpack.

paintlets. A gallery of tweakable and downloadable paint worklets!

rollup-plugin-imagemin. Imagemin meets Rollup!

webp-recompress. A program that generates visually similar WebP images from JPEG inputs.

inp-workshop. INP Workshop

client-hints-example. An example PHP site that implements client hints.

baseline-io-dynamic-session. Baseline dynamic session for Google I/O 2025

wordpress-guess. A proof-of-concept WordPress plugin for Guess.js.

unicode-ranger-cli. A CLI for unicode-ranger

unicode-ranger. A utility that scans URL contents and returns a unicode-range value!

parallelowow. A parallelogram-ish paint worklet that'll make you go "woooow".

diff-serving. JavaScript

flexbox-presentation. A presentation on CSS flexbox display.

aea-denver-notes. Notes from An Event Apart in Denver. Spans 11-13 December, 2017.

bytemare. Hordes of blocks come together to become your WORST BYTEMARE.

service-worker-example. A service worker example repo.

web-worker-example. An example of web workers in action!

randots. Randots! All over the place! Rand(om) dots!

preconnect. A nano-sized preconnect hint wrapper.

lazy-loading-research. Researching SEO implications of various lazy loading libraries.

grab-vitals. A wrapper around Google's web-vitals package to simplify collection and transmission of web vitals to an endpoint.

flashtastic. It's flashtastic!

differential-serving. A differential serving example for a toy app using webpack 5 and Babel 7.

tundra-sunrise-syntax. A dark theme for Atom reminiscent of a sunrise over an icy landscape.

brotli-server. A little Brotli server that you can use for testing!

requirejs-presentation. A presentation on learning RequireJS

web-app. Dictionary database with future API and bot integrations

the-lord-of-the-links. One input responsiveness demo to rule them all.

timenstein. A simpler way to gather user timings.

faster-fonts-for-speed-fanatics. A talk about making fonts faster.